diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3d9da22
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+list-ag-sdns.txt
diff --git a/README.md b/README.md
index fc97a90..ec5f6b7 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,12 @@ Legacy format
 minisign -S -l -m extra-resolvers.md
 ```
 
+## AdGuard
+
+```console
+grep -o 'sdns://[^ ]*' extra-resolvers.md > list-ag-sdns.txt
+```
+
 ### License
 
 This work is licensed under the [GNU GPLv3+](LICENSE)